Daisempai Brenna Berger, 4th Degree Black Belt, sensei in Goju Ryu has been training for over 20 years. She is originally from Colorado Springs, CO and began her training in New York City under Hanshi David Anderson at Koguma Dojo. She is the assistant instructor in Koguma West Dojo in Davis, CA, wife of Rwenshi Tony Berger, and teaches many of the core classes. 

Daisempai Berger emphasizes basic training, kata, strength conditioning and a deep understanding of the philosophy of Goju Ryu as a way of life.